CARCASS COMPOSITION, SPERMATOGENESIS PROCESSES AND PATHOGENIC THREATS OF MALE MALLARD DUCKS (ANAS PLATYRHYNCHOS L.)

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Campylobacter populations in wild and domesticated Mallard ducks (Anas platyrhynchos)

Identifying the Campylobacter genotypes that colonize farmed and wild ducks will help to assess the proportion of human disease that is potentially attributable to the consumption of duck meat and environmental exposure to duck faeces. Comparison of temporally and geographically matched farmed and wild ducks showed that they had different Campylobacter populations in terms of: (i) prevalence, (...

متن کامل

Embryotoxicity of Corexit 9500 in mallard ducks (Anas platyrhynchos).

Embryotoxicity of the oil dispersant Corexit 9500 was examined using fertilized mallard duck eggs. Corexit 9500 was topically applied below the air cell to eggs in volumes ranging from 0 to 100 μL on day 3 of incubation. The highest incidence of mortality occurred at developmental stage 4, one day post-Corexit 9500 application. Hatching success was significantly decreased among eggs treated wit...

متن کامل

Mechanics of feeding in the Mallard ( Anas platyrhynchos L

Mechanics of feeding in the Mallard (Anas platyrhynchos L.; Aves, Anseriformes).--G. A. Zweers, A. F. C. Gerritsen, and P. J. van Kranenburg-Voogd. 1977. Contributions to Vertebrate Evolution, vol. $. vii + 109 pp., 20 figures. Paper $19.75.--For many years, primarily since the 1920's and 1950's, arian morphology has progressively become less descriptive and more functional in its approach. Emp...

متن کامل

Vocalizations of the Mallard (anas Platyrhynchos)

Weidmann 1956; Johnsgard 1965; McKinney compartment was then placed into a 90 ft x 90 ft x 12 ft flight pen. Thus, each of the two observation 1965a, 1969, 1970), and quantitative data are pens had a group of four pairs that had been visually available for visual displays of a few species separated for 5 months. of ducks (e.g., Weidmann 1958; Weidmann Birds were individually marked with colored...

متن کامل

Indoor housing during development affects moult, carotenoid circulation and beak colouration of mallard ducks (Anas platyrhynchos)

Developmental conditions are known to influence adult phenotypes, including naturally selected traits such as structural size, as well as sexually selected traits such as song and colouration. Biotic environmental factors, e.g., neonatal nutrition and health, are especially known to shape expression of adult traits, but there are fewer investigations on the role of abiotic conditions (e.g., lig...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Applied Ecology and Environmental Research

سال: 2020

ISSN: 1589-1623,1785-0037

DOI: 10.15666/aeer/1801_14891507